Cleaning device, urea pump of a vehicle and vehicle

Abstract

The utility model discloses a kind of cleaning device, vehicle's urea pump and vehicle, cleaning device includes: brush piece, brush piece is suitable for circumferential ring around setting in the circumferential outside of vehicle's urea filter element, and suitable for and the circumferential side wall of urea filter element is attached;Floating plate piece, floating plate piece is connected with brush piece and is spaced apart from the surface of urea filter element, floating plate piece selectively moves up and down, to drive brush piece to clean the circumferential side wall of urea filter element. Thus, by setting brush piece in the circumferential outside of urea filter element, setting floating plate piece selectively drives brush piece to move up and down, can make brush piece move up and down in the circumferential outside of urea filter element, to brush and wash up and down in the circumferential outside of urea filter element, so it can effectively clean suspended impurities adsorbed on urea filter element, can avoid urea filter element blockage or damage, to improve the filtering efficiency of urea filter element, it is favorable to prolong the service life of urea filter element.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a cleaning device, a urea pump for a vehicle, and a vehicle. Background Technology

[0002] The technical principle of urea injection technology (SCR technology, also known as selective catalytic reduction technology) is to hydrolyze urea into ammonia at high temperature, and then catalytically reduce nitrogen oxides (harmful emissions) in the exhaust gas to nitrogen and water on a catalyst-coated carrier in a reduction reaction chamber. Its main purpose is to reduce emissions and decrease air pollution from exhaust gas. Meanwhile, the urea pump is an indispensable component of this technology.

[0003] In existing technologies, urea pumps contain filters or filter elements, which must be cleaned or replaced regularly. Otherwise, over time, the filter holes may become clogged or the filter may be damaged, resulting in a loss of filtration function and causing system malfunction. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cleaning device that can clean impurities adsorbed on urea filter elements and prevent clogging of the urea filter elements.

[0005] This utility model further proposes a urea pump for vehicles.

[0006] This utility model further proposes a vehicle.

[0007] The cleaning device according to an embodiment of the present invention includes: a brush member adapted to be circumferentially arranged around the circumferential outer side of a urea filter element of a vehicle and adapted to be in contact with the circumferential sidewall of the urea filter element; and a float member connected to the brush member and spaced apart from the surface of the urea filter element, wherein the float member selectively moves up and down to drive the brush member to clean the circumferential sidewall of the urea filter element.

[0008] Therefore, by setting brush components on the circumferential outer side of the urea filter element and setting float components to selectively drive the brush components to move up and down, the brush components can move up and down on the circumferential outer side of the urea filter element to brush and wash the circumferential outer side of the urea filter element. This can effectively clean the suspended impurities adsorbed on the urea filter element, avoid clogging or damage to the urea filter element, thereby improving the filtration efficiency of the urea filter element and helping to extend the service life of the urea filter element.

[0009] According to some embodiments of the present invention, the cleaning device further includes a guide assembly, wherein the brush and the floating plate are both connected to the guide assembly.

[0010] According to some embodiments of the present invention, the guide assembly further includes: a guide sleeve and a guide post, the guide post being adapted to be connected to the urea pump of a vehicle, the guide sleeve being sleeved on the circumferential outer side of the guide post and movable up and down relative to the guide post, and the brush and the float being connected to the guide sleeve.

[0011] According to some embodiments of the present invention, there are multiple brush components, and the multiple brush components are arranged at intervals along the vertical direction.

[0012] According to some embodiments of the present invention, the float plate is located at the middle position of the guide assembly in the vertical direction.

[0013] According to some embodiments of the present invention, there are multiple floating plate components, and the multiple floating plate components are arranged at intervals in the vertical direction.

[0014] According to some embodiments of the present invention, the cleaning device further includes: a limiting member, the limiting member being connected to at least one end of the guide post in the vertical direction, the limiting member being connected to at least one end of the urea filter element in the vertical direction, and the guide assembly being selectively limited and engaged with the limiting member.

[0015] According to some embodiments of this utility model, the length of the guide assembly in the vertical direction is set to L1, and the length of the guide post in the vertical direction is set to L2. Then L1 and L2 satisfy the relationship: L1 < L2.

[0016] A vehicle urea pump according to an embodiment of the present invention includes: a housing, wherein a receiving space is provided inside the housing, and urea liquid is disposed in the receiving space; a urea filter element, wherein the urea filter element is located in the receiving space and connected to the housing, and the urea liquid contacts the urea filter element for filtration; and a cleaning device, wherein the cleaning device is located in the receiving space, and the urea liquid contacts the float plate to selectively move the float plate up and down during vehicle operation.

[0017] The vehicle according to an embodiment of the present invention includes the urea pump described above.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a partial schematic diagram of a urea pump according to an embodiment of the present utility model; Figure 2 This is a partial schematic diagram of a urea pump according to an embodiment of the present invention.

[0020] Figure label: 100. Urea pump; 10. Cleaning equipment; 1. Brush parts; 2. Floating plate parts; 3. Guide assembly; 31. Guide kit; 32. Guide post; 4. Limiting component; 41. First limiting component; 42. Second limiting component; 20. Urea filter element. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0022] The following is for reference. Figures 1-2 The present invention describes a cleaning device 10 according to an embodiment of the present invention, which is applicable to a vehicle urea pump 100.

[0023] Combination Figures 1-2 As shown, the cleaning device 10 according to an embodiment of the present invention mainly includes: a brush member 1 and a web member. The brush member 1 is adapted to be circumferentially arranged around the circumferential outer side of the urea filter element 20 of the vehicle, and is adapted to be in contact with the circumferential sidewall of the urea filter element 20. Specifically, the brush member 1 is provided with brushes, which can be circumferentially arranged around the circumferential outer side of the urea filter element 20, so that the brush member 1 is close to the urea filter element 20, and the brushes on the brush member 1 are in contact with the circumferential sidewall of the urea filter element 20. This allows the brushes on the brush member 1 to directly contact the circumferential sidewall of the urea filter element 20, so as to achieve brushing of the circumferential outer side of the urea filter element 20 by the brush member 1.

[0024] Furthermore, the float plate 2 is connected to the brush 1, which allows for a strong transmission between the float plate 2 and the brush 1. The float plate 2 is spaced apart from the surface of the urea filter element 20, which not only prevents the brush 1 from contacting the surface of the urea filter element 20, thus ensuring reliable surface contact, but also prevents abnormal noise or damage to the urea filter element 20 caused by friction between the float plate 2 and the urea filter element 20. This ensures the filtration reliability of the urea filter element 20.

[0025] Furthermore, the float plate 2 can selectively move up and down, which in turn can drive the brush 1 to selectively move up and down. In this way, the brush 1 can brush the circumferential sidewall of the urea filter element 20 to clean the circumferential sidewall of the urea filter element 20.

[0026] In an embodiment of this utility model, urea liquid is provided in the urea pump 100 of the vehicle. The urea liquid can generate a certain amount of buoyancy on the float plate 2. Thus, during the vehicle's operation, the liquid level of the urea liquid changes, which can cause the float plate 2 to move selectively up and down, thereby causing the brush 1 to clean the circumferential sidewall of the urea filter element 20.

[0027] Therefore, this utility model embodiment can effectively clean the suspended impurities adsorbed on the urea filter element 20, avoid clogging or damage to the urea filter element 20, thereby improving the filtration efficiency of the urea filter element 20 and helping to extend the service life of the urea filter element 20.

[0028] Combination Figure 2 As shown, the cleaning device 10 also includes a guide assembly 3, with the brush component 1 and the float component 2 both connected to the guide assembly 3. Specifically, the guide assembly 3 has a certain amount of movement space along a set path. The brush component 1 and the float component 2 are both connected to the guide assembly 3, allowing them to move along the set path of the guide assembly 3. This ensures the stability of their movement, which in turn improves the stability of the contact between the brush component 1 and the circumferential surface of the urea filter element 20. This, in turn, enhances the cleaning effect of the cleaning device 10 on the urea filter element 20, improves the filtration efficiency of the urea filter element 20, and extends its service life.

[0029] Combination Figure 2 As shown, the guide assembly 3 also includes a guide sleeve 31 and a guide post 32. The guide post 32 is adapted to be connected to the urea pump 100 of the vehicle. The guide sleeve 31 is fitted around the circumferential outer side of the guide post 32 and can move up and down relative to the guide post 32. The brush part 1 and the float part 2 are both connected to the guide sleeve 31. Specifically, the guide assembly 3 consists of the guide sleeve 31 and the guide post 32. The guide post 32 is connected to the urea pump 100 of the vehicle so that the guide post 32 is fixed in the urea pump 100. The guide sleeve 31 is fitted around the circumferential outer side of the guide post 32 to ensure the structural stability of the guide sleeve 31 in the urea pump 100.

[0030] Furthermore, both the brush component 1 and the float component 2 are connected to the guide assembly 31, which allows for a strong transmission between the brush component 1 and the float component 2 and the guide assembly 31. The guide assembly 31 can move up and down relative to the guide post 32, so that both the brush component 1 and the float component 2 can move up and down along the guide post 32. This determines the movement path of the brush component 1 and the float component 2 in the urea pump 100, so that the brush component 1 and the float component 2 can move up and down on the circumferential outer side of the urea filter element 20. This allows the brush component 1 to brush the circumferential outer side of the urea filter element 20 in the up and down direction, and enables the cleaning device 10 to clean the suspended impurities adsorbed on the urea filter element 20.

[0031] Combination Figure 2 As shown, there are multiple brush components 1, which are arranged at intervals along the vertical direction. In this embodiment of the present invention, multiple brush components 1 are arranged on the circumferential outer side of the urea filter element 20. This allows multiple brush components 1 to clean the surface of the urea filter element 20 simultaneously, thereby improving the brushing efficiency of the brush components 1 on the surface of the urea filter element 20. This can clean the suspended impurities adsorbed on the surface of the urea filter element 20 in a shorter time, thus shortening the time it takes for impurities to clog the urea filter element 20 and allowing for timely unblocking of the filter pores when clogging occurs.

[0032] Furthermore, multiple brush components 1 are arranged sequentially at intervals along the vertical direction, so that the multiple brush components 1 can be evenly distributed along the vertical direction on the circumferential outer side of the urea filter element 20. This not only maintains the balance of the cleaning device 10 so that the cleaning device 10 moves up and down with the liquid in the urea pump 100, but also avoids stress concentration on the guide assembly 31, which is beneficial to improving the structural reliability of the cleaning device 10.

[0033] Furthermore, multiple brush pieces 1 are arranged at intervals along the vertical direction. This ensures that when the liquid level of the urea solution fluctuates, the total stroke of the multiple brush pieces 1 in the vertical direction can at least cover the distance of the circumferential sidewall of the urea filter element 20 in the vertical direction. This is beneficial to improving the cleaning effect of the cleaning device 10 on the urea filter element 20.

[0034] According to some embodiments of this utility model, combined with Figure 2As shown, the float plate 2 is located at the middle position of the guide assembly 31 in the vertical direction. Specifically, in the embodiment of this utility model, there can be one float plate 2, located at the middle position of the guide assembly 31 in the vertical direction. That is, the distance between the float plate 2 and the upper end of the guide assembly 31 in the vertical direction is equal to the distance between the float plate 2 and the lower end of the guide assembly 31 in the vertical direction. With this arrangement, the upward movement of the float plate 2 in the urea liquid is equal to the downward movement of the float plate 2 in the urea liquid. Thus, when the liquid level of the urea liquid fluctuates, the vertical movement of the brush 1 can cover the vertical distance of the circumferential sidewall of the urea filter element 20. This is beneficial to improving the cleaning effect of the cleaning device 10 on the urea filter element 20.

[0035] According to some embodiments of this utility model, there are multiple float plates 2, which are arranged sequentially and spaced apart in the vertical direction. This allows the multiple float plates 2 to fluctuate in the liquid level of the urea liquid, jointly driving the guide assembly 31 to move up and down along the guide post 32. This ensures that the force received by the guide assembly 31 during its vertical movement is evenly distributed in the vertical direction, making the movement of the brush 1 driven by the guide assembly 31 in the vertical direction more stable. This, in turn, helps to improve the tightness of the contact between the brush 1 and the circumferential sidewall of the urea filter element 20 during its vertical movement. The tight contact between the brush 1 and the circumferential sidewall of the urea filter element 20 ensures that the brush 1 applies sufficient pressure to the circumferential sidewall of the urea filter element 20, thereby improving the cleaning power of the brush 1 on the circumferential sidewall of the urea filter element 20 and improving the cleaning effect of the cleaning device 10 on the urea filter element 20.

[0036] Combination Figure 2 As shown, the cleaning device 10 also includes a limiting member 4, which is connected to at least one end of the guide post 32 in the vertical direction and to at least one end of the urea filter element 20 in the vertical direction. The guide assembly 31 and the limiting member 4 are selectively limited and engaged. Specifically, in the embodiments of this utility model, there are at least two cleaning components, which are divided into a first limiting component 41 and a second limiting component 42. The first limiting component 41 is connected to any end of the guide post 32 in the vertical direction, and the second limiting component 42 is connected to the end of the guide post 32 away from the first limiting component 41 in the vertical direction. Both the first limiting component 41 and the second limiting component 42 are integrated with the outer shell of the urea filter element 20. In this way, when the guide assembly 31 moves up and down relative to the guide post 32, the first limiting component 41 and the second limiting component 42 can selectively limit and cooperate with the guide assembly 31 to ensure that the stroke of the guide assembly 31 moving up and down relative to the guide post 32 is fixed. This can ensure the reliability of the up and down movement of the float plate 2 and the brush 1 relative to the circumferential sidewall of the urea filter element 20.

[0037] In some other embodiments of this utility model, there is one limiting member 4. The limiting member 4 is connected to the upper end of the guide post 32 and integrated with the outer shell of the urea filter element 20. The lower end of the guide post 32 is connected to the shell of the urea pump 100. In this way, the limiting member 4 and the shell of the urea pump 100 can selectively limit the guide assembly 31 to limit the vertical movement distance of the guide assembly 31.

[0038] According to an embodiment of the present invention, the length of the guide assembly 31 in the vertical direction is set to L1, and the length of the guide post 32 in the vertical direction is set to L2. Then L1 and L2 satisfy the relationship: L1 < L2.

[0039] Specifically, in the embodiments of this utility model, the length of the guide assembly 31 in the vertical direction is less than the length of the guide post 32 in the vertical direction. This allows the guide assembly 31 to have a certain amount of moving space relative to the guide post 32 in the vertical direction. This ensures that the float plate 2 and the brush 1 move up and down in the urea pump 100 as the urea liquid level fluctuates, thereby ensuring the cleaning effect of the cleaning device 10 on the circumferential sidewall of the urea filter element 20.

[0040] According to an embodiment of the present invention, the cleaning device 10 is applicable to a vehicle urea pump 100. The vehicle urea pump 100 includes a housing, a urea filter element 20, and the cleaning device 10. The housing has a receiving space containing urea liquid. The urea filter element 20 is located in the receiving space and connected to the housing. The urea liquid contacts and filters the urea filter element 20. The cleaning device 10 is located in the receiving space, and the urea liquid contacts the float 2 to selectively move the float 2 up and down during vehicle operation.

[0041] Specifically, the housing provides a stable and reliable space for the urea filter element 20 and the cleaning device 10 within the urea pump 100, allowing the urea liquid to contact the urea filter element 20 and thus filter the urea liquid. This prevents impurities in the urea liquid from clogging the structure or parts, reducing system malfunctions caused by impurities. For example, if dust is accidentally introduced into the tank when adding urea, and the filtration function of the urea filter element 20 fails, it can easily cause nozzle clogging, leading to poor urea atomization and crystallization.

[0042] Furthermore, the cleaning device 10 can be positioned in the urea liquid. During vehicle operation, the urea liquid level will fluctuate, causing the float plate 2 to move up and down. The float plate 2 can then move the guide assembly 31 up and down along the guide post 32, which in turn can move the brush 1 up and down relative to the circumferential sidewall of the urea filter element 20. This allows the brush 1 to brush the suspended impurities adsorbed on the urea filter element 20, preventing clogging of the urea filter element 20, improving its filtration efficiency, and extending its service life.

[0043] According to an embodiment of the present invention, the urea pump 100 for vehicles is applicable to vehicles. By applying the urea pump 100 equipped with the cleaning device 10 of the present invention to a vehicle, the liquid level fluctuation in the urea pump 100 caused by vehicle movement can drive the brush component 1 to clean the impurities on the surface of the urea filter element 20. In this way, even if the urea pump 100 is used for a long time without being disassembled for cleaning and replacement, the filtration effect of the urea filter element 20 can be guaranteed, which can effectively prevent the urea filter element 20 from clogging or being damaged, thereby reducing the cleaning frequency of the urea filter element 20, extending the service life of the urea filter element 20, and thus helping to reduce the maintenance cost of the vehicle.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "circumferential", "radial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning device, characterized in that, include: A brush component, the brush component being adapted to be circumferentially arranged around the circumferential outer side of a urea filter element in a vehicle, and adapted to be in contact with the circumferential sidewall of the urea filter element; A float plate is connected to the brush component and spaced apart from the surface of the urea filter element. The float plate can selectively move up and down to drive the brush component to clean the circumferential sidewalls of the urea filter element.

2. The cleaning device according to claim 1, characterized in that, Also includes: The guide assembly is connected to both the brush component and the floating plate component.

3. The cleaning device according to claim 2, characterized in that, The guiding assembly further includes: a guide sleeve and a guide post, the guide post being adapted to be connected to the urea pump of the vehicle, the guide sleeve being fitted around the circumferential outside of the guide post and movable up and down relative to the guide post, and the brush and the float being connected to the guide sleeve.

4. The cleaning device according to claim 1, characterized in that, There are multiple brush components, which are arranged at intervals along the vertical direction.

5. The cleaning device according to claim 3, characterized in that, The floating plate is located at the midpoint of the guide assembly in the vertical direction.

6. The cleaning device according to claim 3, characterized in that, There are multiple floating plate components, which are arranged at intervals along the vertical direction.

7. The cleaning device according to claim 3, characterized in that, It also includes: a limiting member, which is connected to at least one end of the guide post in the vertical direction, and the limiting member is connected to at least one end of the urea filter element in the vertical direction, and the guide assembly is selectively limited and engaged with the limiting member.

8. The cleaning device according to claim 3, characterized in that, Let the length of the guide assembly in the vertical direction be L1, and let the length of the guide post in the vertical direction be L2. Then L1 and L2 satisfy the relationship: L1 < L2.

9. A urea pump for a vehicle, characterized in that, include: A shell, wherein a receiving space is provided inside the shell, and urea liquid is provided in the receiving space; A urea filter element, wherein the urea filter element is located in the receiving space and connected to the housing, and the urea liquid contacts the urea filter element for filtration; The cleaning device according to any one of claims 1-8, wherein the cleaning device is located in the receiving space, and the urea liquid is in contact with the float to selectively move the float up and down during vehicle operation.

10. A vehicle, characterized in that, include: The urea pump according to claim 9.

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